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Author Topic: The largest, most powerful model engine I've ever owned...  (Read 373 times)

Andyn

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The largest, most powerful model engine I've ever owned...
« on: March 30, 2019, 01:06:58 AM »

The engine for a boat I'm building arrived today, thought I'd share with the masses %)


This thing is a 35cc Magnum disc valve motor, is putting out 11.5hp at 18,000rpm. The carb is the size of a 21 crankcase, with a venturi the size of a 45 sleeve. I haven't weighed it yet, but it's not exactly what you'd call light...


Shall be going in a 56" mono, expecting speeds well over 60mph


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Martin [Admin]

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Re: The largest, most powerful model engine I've ever owned...
« Reply #1 on: March 30, 2019, 03:46:12 AM »


.... does it have a kick start?!   :o
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Netleyned

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Re: The largest, most powerful model engine I've ever owned...
« Reply #2 on: March 30, 2019, 07:02:54 AM »

Naah, Cartridge Start  :D :D :D :D


Ned
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Andyn

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Re: The largest, most powerful model engine I've ever owned...
« Reply #3 on: March 30, 2019, 09:16:19 AM »

Now it's daylight, the boat it's going in. German Shepherd sized pooch for scale...


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JimG

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Re: The largest, most powerful model engine I've ever owned...
« Reply #4 on: March 30, 2019, 10:00:14 AM »

Not for boat use but here is my largest engine. A UMS 7-90, a 90cc 7 cylinder petrol 4 stroke radial, turns a 24 x 10 propellor. Fitted to a quarter scale Stearman. A short video of it being test run.https://www.youtube.com/watch?v=6CDbE7LtzgU
Jim
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tigertiger

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Re: The largest, most powerful model engine I've ever owned...
« Reply #5 on: March 30, 2019, 01:21:04 PM »

Nice  motor Jim, sounds awesome :-)) . I would love to video of the finished model flying when you get to that point.
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JimG

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Re: The largest, most powerful model engine I've ever owned...
« Reply #6 on: March 30, 2019, 06:42:30 PM »

Thanks, the plane is being refurbished at the moment but it may be ready to fly for next weekend if the weather is good.
Jim
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SteamboatPhil

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Re: The largest, most powerful model engine I've ever owned...
« Reply #7 on: March 30, 2019, 07:39:17 PM »

I always said you were a bit mad Andy, but what a project  :-))
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